If it is cut with a flat or almost flat face then a golden colour is revealed. 1930s 23 1 carats 4 62 g national museum of natural history. 1930 100 32 carats 20 064 g american museum of natural history. The word ruby comes from ruber latin for red. 40 63 carats 8 126 g sunrise ruby.
Ruby is one of the traditional cardinal gems together with amethyst sapphire emerald and diamond. A gemstone also called a gem. A ruby is a pink to blood red colored gemstone a variety of the mineral corundum aluminium oxide. The star effect is owed to aligned needle like rutile inclusions. Star ruby is a rare variety of ruby that exhibits asterism.
It is usually cut into a dome shape to show a star feature. The star ruby occasionally found with the star sapphire in sri lanka is among the most valued of fancy stones other examples are star topaz and certain. In the red instance stellate reflection is rarer. The chemical composition and features for black star were analyzed in the journal of gemmology where it is stated that black star has a typically high fe ti. Unusual optical phenomena within the stone such as color zoning the uneven distribution of coloring within a gem and asteria star effects.
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A ruby is a pink to blood red coloured gemstone a variety of the mineral corundum aluminium oxide. It is the rutile which is responsible for its silky shine. A ruby is a pink to blood red coloured gemstone a variety of the mineral corundum aluminium oxide. A six rayed star that shimmers over the surface of the stone when it is moved. It is usually cut into a dome shape to show a star feature.
It is the rutile which is responsible for its silky shine. Ruby is one of the traditional cardinal gems together with amethyst sapphire emerald and diamond. If it is cut with a flat or almost flat face then a golden colour is revealed.
